Tool.



H. E. JORDON & D. A. SULLIVAN.

TOOL.

- APPLIOATIGN FILED JUNE 2, 1909.

96 1 ,6 1 K Patented June 14, 1910.

WITNESSES:

il'iT TE NT FFTQEQ HENRY E. JORDON AND DANIEL A. SULLIVAN, OF NEW YORK,N. Y.

TOOL.

To all whom it may concern:

Be it known that we, HENRY E. JoRooN and DANIEL A. SULLIVAN, citizens ofthe United States, and residing at New York, in the county of New Yorkand State of New York, have invented certain new and useful Improvementsin Tools, of which the following is a specification, such as will enablethose skilled in the art to which it appertains to make and use thesame.

This invention relates to tools of the class known as levels and pitchor grade finders; and the object thereof is to provide an improveddevice of this class which may be used as an ordinary level and forindicating the pitch of a wall, the grade of a railroad and for variousother purposes.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawing forms a part, in which the separate partsof our improvement are designated by suitable reference characters ineach of the views, and in which Figure 1 is a front view of our improvedtool, Fig. 2 a similar view showing the front part of the tool or thecasing thereof removed, Fig. 3 a partial section on the line 33 of Fig.1, and, Fig. 4 a view similar to Fig. 2 but showing only a portion ofthe operating parts of the tool and a modification of said parts.

In the practice of our invention we provide a casing a made in the formof an ordinary level and comprising, in the form of construction shown,a back member a and front member a connected by screws (0*, and in saidcasing and formed preferably in the back member (1 thereof is alongitudinal chamber 6 consisting, in the form of construction shown, ofa main longitudinal part 6 provided at one end with a transverse part bwhich is arc-shaped in form and communicating at the other end with atransverse part b which communicates with a longitudinal supplementalchamber 6 adjacent to one side edge of the casing a and closed by aplate 0 having a longitudinal opening 0 the part b of said chamber beingapproximately central of the casing a.

Secured between the part b of the chamber b and the corresponding end ofthe back Specification of Letters Patent.

Application filed June 2, 1909.

Patented June 114, 1910.

Serial No. 499,673.

of the casing a is a scale plate (2 provided, in the form ofconstruction shown, with a scale d which is supposed to representeighths and sixteenths of an inch, and pivoted at (Z in the chamber Z)is an arm 6 which ranges longitudinally through the main part of saidchamber and the end of which is provided with a transverse spirit level6 having a pointer c which operates in connection with the scale (Z onthe plate d, and said arm consists of a longer end 6 and shorter end 6Pivoted in the part b of the chamber 6 at f is a plate 9 provided with aspirit level g which may be seen through the opening 0 of the plate 0which is secured to the easing a and forms a part thereof, and the saidplate 9 is provided with an arm g which ranges in the same direction asthe arm 6 and which is connected with the shorter end 6 of the arm 6 bya link g.

The distance between the pivot point 65 of the arm 6 and the end d ofsaid arm is the same as the distance between the pivot point f of theplate g, and the end of the arm 9 at 9 The front plate a of the casing ais provided with a transverse opening it through which the spirit level6 and the scale plate d may be clearly seen, and inwardly of saidopening with a transverse arc-shaped slot k through which is passed ascrew 70 connected with the part 6* of the arm 6 and provided with athumb nut h by means of which the arm 6 or the longer end 6 thereof maybe swung into any desired position and locked in or held in saidposition.

By means of this construction it will be apparent that any movement ofthe arm 6 or the longer end 6* thereof will be transmitted to the arm 9of the plate 9 and to the spirit level 9 and when the arm 6 or the end 6thereof is in the position shown in Fig. 2 or in such position that thepointer 6 indicates the center mark of the scale d the spirit level gwill be in a position parallel with the plate 0 and the device may beused as an ordinary level.

The operation of using the device to inclicate the pitch of a well is asfollows :Suppose the end 6 of said arm to be one foot in length and thescale marks on the scale (Z to represent eighths and sixteenths of aninch, and it is desired to give a wall a pltch of one-eighth'of an inchto the foot. The arm 6 or the end 6 thereof is moved so that the pointer6 will indicate one-eighth of an inch at one side of the center of saidscale and the air bubble in the spirit level 6 can not be seen until thetool is held upright and tilted so that said air bubble will appear inits proper place and the tilt of the side edge of the tool will then bethe pitch which is to be given to the wall. l Vith the constructionshown in Fig. 2 of the arms 0 and g and the link 9 the operation willnot be exact ex cept for very small angles or inclinations, but in Fig.4 we have shown a modification of this construction in which the shorterend 6 of the arm 6 and the arm 9 of the plate 9 are placed in a directline between the pivot points (Z and f, and said arms are provided withintermeshing segmental gears 71 and 2' and with this construction theoperation of the device will be exact within any practical or desiredlimits.

The operation in measuring the grade of a railroad or other road will beas follows Suppose it is desired to give a road a grade or inclinationof one-sixteenth of an inch to a foot, the arm 6 or the longer end 6thereof is moved so that the pointer 6 will indicate one-sixteenth of aninch to one side of the center of the scale (Z. This operation willthrow the spirit level 9 into such position that the air bubble thereincannot be seen through the opening 0 in the plate 0, and by placing theback edge of the tool on a level surface and raising one end thereof sothat the air bubble in the spirit level 9 can be seen through theopening 0 the grade or inclination of the road will be indicated. Thisdevice may also be used in the same manner for indicating the desiredheight of one rail of a railway track above another in making curves inthe track, and for various other and similar purposes, and our inventionis not limited to any particular style of the scale cl or the characterof said scale, nor to the length of the longer arm 6, nor to the lengthof the shorter end of said arm and the length of the arm 9, and variouschanges in and modifications of the construction herein shown may bemade, within the scope of the appended claims, without departing fromthe spirit of our invention or sacrificing its advantage.

Our invention is also not limited to any form or construction of thecasing a, and the same may be made in any desired manner, and thechamber or chambers therein may consist of a continuous longitudinalchamber if desired.

Having fully described our invention,

what We claim as new and desire to secure by Letters Patent, is

1. A tool of the class described comprising a casing which is oblong inform and provided with parallel side edges in one of which adjacent toone end of the tool is an opening, a main arm pivoted in said casing andranging longitudinally thereof. and comprising longer and shorter endmembers, a spirit level connected transversely with the end of thelonger end member of said arm and provided with a pointer, a scale inconnection with which said pointer operates, and another spirit levelpivoted back of said opening and provided with an arm which is inoperative connection with the shorter end member of the main arm.

2. A tool of the class described comprising a casing which is oblong inform and provided with parallel side edges in one of which adjacent toone end of the tool is an opening, a main arm pivoted in said casing andranging longitudinally thereof and comprising longer and shorter endmembers, a spirit level connected transversely with the end of thelonger end member of said arm and provided with a pointer, a scale inconnection with which said pointer operates, and another spirit levelpivoted back of said opening and provided with an arm which is inoperative connection with the shorter end member of the main arm, andmeans for moving said main arm into any desired position and locking itin such position.

3. A. tool of the class described comprising a casing which is oblong inform and provided with parallel side edges in one of which adjacent toone end of the tool is an opening, a main arm pivoted in said casing andranging longitudinally thereof and comprising longer and shorter endmembers,

a spirit level connected transversely with the end of the longer endmember of said arm and provided with a pointer, a scale in connectionwith which said pointer operates, and another spirit level pivoted backof said opening and provided with an arm which is in operativeconnection with the shorter end member of the main arm, and means formoving said main arm into any desired position and looking it in suchposition, consisting of a screw connected with said arm and passedthrough a transverse slot formed in one side of the casing and a thumbnut mounted on said screw.

4. In a device of the class described, a casing having parallel sideedges, an arm pivoted in said casing and comprising longer and shorterend members, a spirit level connected transversely of the longer endmember of said arm and provided with a pointer, a scale at one end ofsaid casing and in connection with which said spirit level opas ourinvent-ion We have signed our names 10 erates, another spirit levelpivoted adjacent in presence of the subscribing Witnesses this to oneside edge of said casing and adjacent 29th day of May 1909.

to the opposite end thereof and provided With an arm the shorter endmember of the AN main arm and the arm of the last named spirit levelbeing provided with intermesh- Witnesses:

ing segmental gears. H. R. CANFmLD,

In testimony that We claim theforegoing C. E. MU'LREANY.

